I'm not sure about a favourite but I am focusing on one I like a lot at the moment.
Mark 3:24 - And if a kingdom be divided against itself, that kingdom cannot stand.
also
Mark 3:29, 30 - But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation: Because they said, He hath an unclean spirit.
I'm looking at this in terms of living with the heart and mind divided and how that affects our thoughts and actions, and often in my opinion, a lot of the conflict within the self that results in negative actions and outcomes. Once I made the connection of a "divided kingdom" with our heart v's mind, or logic v's emotion, this has made much more sense to me...
Great thread PastorTim, it's nice to meet you & welcome 